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The US Environmental Protection Agency (EPA) is proposing to add new and revised methods for water quality monitoring.
The US Environmental Protection Agency (EPA) is proposing to add new and revised methods for water quality monitoring. These changes and additional methods will provide increased flexibility to the regulated community and laboratories when selecting analytical methods for use in Clean Water Act programmes.
Dionex announced that as part of a joint EPA/ASTM International task force, the company has worked to implement new updates to expand choices available to laboratories for achieving compliance monitoring. This joint task force was created to simplify sampling and testing methods that sometimes result in false positives and false negatives in complex matrices.
The US EPA is proposing to add ASTM D2036-09 Standard Test Methods for Cyanides in Water, Test Method A Total Cyanide after Distillation: “The inclusion of ion chromatography and gas diffusion separation with amperometric detection as determinative steps will give users additional options to measure cyanide after distillation. Furthermore, these determinative steps can be used to mitigate interferences that have been associated with conventional colorimetric test methods.”
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